ArticleScientific reports2025
Fenofibrate differentially activates PPARα-mediated lipid metabolism in rat kidney and liver.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- The value of targeting ketone body metabolism in inflammatory and autoimmune diseases.Journal of translational medicine · 2026Review
- Integrated transcriptomic analysis and experimental validation identify ACADL as a mitochondrial tumor suppressor via the FOXO3a/PUMA axis in lung adenocarcinoma.European journal of medical research · 2026Article
- A systems-level integration of liver-kidney transcriptomics and genome-scale metabolic models reveals organ-specific injury mechanisms.Frontiers in toxicology · 2026Article
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9 authors.
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Abstract
Fenofibrate, a peroxisome proliferator-activated receptor α (PPARα) agonist, is widely prescribed to treat hyperlipidemia and has therapeutic potential in liver and kidney diseases. However, fenofibrate is also associated with adverse effects, including elevated creatinine and liver and kidney toxicity, although the underlying mechanisms remain unclear. In addition, how fenofibrate regulates lipid metabolism differently in the liver and kidney is not well understood. Therefore, in this study, we investigated the dose-dependent effects of fenofibrate on liver and kidney metabolism in rats, with a focus on PPARα activation and potential mechanisms contributing to organ-specific toxicity. We used high-throughput transcriptomic data from 5-day rat in vivo studies, where rats were exposed to fenofibrate, and performed pathway enrichment, injury module, and detailed individual gene comparison analyses to investigate how liver and kidney metabolism were differentially altered between the two organs. Fenofibrate exposure significantly increased liver but not kidney weights and caused larger perturbations in the liver compared to the kidney transcriptome, with the majority of the changes related to PPARα regulation. Interestingly, our study revealed that the PPARα and RXRα genes are differentially regulated between the liver and kidney. In addition, we identified several differences between them in cellular and mitochondrial fatty acid transport, lipoprotein metabolism, fatty acid oxidation, branched-chain amino acid degradation, and glucose metabolism pathways. Furthermore, we identified transcriptomic inflection points at which the changes in the PPARα-mediated regulation of lipid metabolism switched from beneficial to deleterious as the fenofibrate concentration increased leading to liver injury, providing potential mechanisms of toxicity.
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